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King
 4 years ago
xy+x+y=13
yz+y+z=9
xz+x+z=5
Find x,y,z.
King
 4 years ago
xy+x+y=13 yz+y+z=9 xz+x+z=5 Find x,y,z.

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Lumenaire
 4 years ago
Best ResponseYou've already chosen the best response.1x(y+1) + y = 13 so x = (13 y)/(y+1)

Lumenaire
 4 years ago
Best ResponseYou've already chosen the best response.1substitute that in for x, and the rest is just a simple 2 equations with 2 unknown variable problem

King
 4 years ago
Best ResponseYou've already chosen the best response.0please wait.....lemme try...

Lumenaire
 4 years ago
Best ResponseYou've already chosen the best response.1can you be more clear? post your work

King
 4 years ago
Best ResponseYou've already chosen the best response.0wait i got (13z13yzy)/y+1 +z=5

Lumenaire
 4 years ago
Best ResponseYou've already chosen the best response.1ok use equation 2 now: y(z+1) + z = 9 so y = (9z)/(z+1) plug that in for y

Lumenaire
 4 years ago
Best ResponseYou've already chosen the best response.1ok. that is a quadratic equation. solve it

Lumenaire
 4 years ago
Best ResponseYou've already chosen the best response.1now substitute for z in the other equations

Lumenaire
 4 years ago
Best ResponseYou've already chosen the best response.1(for simplicity's sake, substitute into the original equations)

Lumenaire
 4 years ago
Best ResponseYou've already chosen the best response.1there you go. That's it!

King
 4 years ago
Best ResponseYou've already chosen the best response.0thnx....ure awesome!!!!!!!!!!!!!
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